doc__table__19
DIRECTIVE 2008/50/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 21 May 2008 on ambient air quality and cleaner air for Europe · European Union
Averaging period | Critical level | Margin of tolerance Sulphur dioxide Calendar year and winter (1 October to 31 March) | 20 μg/m3 | None Oxides of nitrogen Calendar year | 30 μg/m3 NOx | None
← CRITICAL LEVELS FOR THE PROTECTION OF VEGETATION · All articles · ANNEX XIV →
Source: EUR-Lex CELLAR · retrieved 2026-08-09 · Text as consolidated on 2015-09-18; changes after this date are not shown.